Malala Yousafzai in a scene from "He Named Me Malala". (Courtesy of Fox Searchlight Pictures)

In 2014, Malala Yousafzai became the youngest person to ever win the Nobel Peace Prize. It’s a difficult accomplishment to top, but last week, Yousafzai celebrated another major achievement: graduating from high school.

As The New York Times reports, the 19-year-old recently concluded her studies at a secondary school in Birmingham, England. It was a poignant moment for Yousafzai, who became an advocate for girls’ education while she was still living in Pakistan. She attended school in the country’s Swat Valley, defying the Taliban’s prohibition against girls’ education. A Taliban gunman shot her in the head while she was riding the bus home from school.

“I enjoyed my school years and I am excited for my future,” Yousafzai wrote on her last day of school. “But I can’t help thinking of millions of girls around the world who won’t ​complete their education.

Yousafzai told Teen Vogue that she is heading to college in the fall, but she has not said where. Before her first semester begins, she will visit the Middle East, Africa, and Latin America to meet with girls there.

“Each girl’s story is unique,” she wrote on Twitter, “ and girls’ voices are our most powerful weapons in the fight for education and equality.”